71. How do I send an auto reply to my emails if I am away on holiday?

Use the Out-of-Office Assistant if you are using Microsoft Exchange.
If you are not using Exchange, you can emulate the Out-of-Office Assistant by using Rules.
However, you will need to leave your machine on, Outlook open, and expect to be on every spammer's "live" list as you will not be able to discriminate between who does and who does not get a response.

72. I'm getting replies to messages but can only see my original text.

Try to reinstall your Office to fix this issue.